LIST OF DIPTERA. 713 



Tachina basalis, n. s. Nigra, capite albo, abdomine rufo, antennis 

 pedibusque nigris, alis cinereis basi nigris, nervo transverso disci 

 fusco nebuloso. 



Smaller than T. hystrix, the abdomen more thickly armed 

 with spines, the wings rather paler. Body black : head white, gray 

 with a brown stripe from the crown to the base of the feelers, beset 

 above with a few black bristles, clothed beneath with white hairs ; 

 epistoma very prominent ; sides of the face fringed with bristles on 

 one-fourth of the length from the base : sucker black, clothed at the 

 tip with a few short pale tawny hairs ; palpi long, tawny, beset with 

 short black bristles : eyes bright red, not hairy : feelers black, as long 

 as the face ; third joint hardly longer than the second, very convex 

 above, flat beneath, rounded at the tip ; bristle downy, gradually ta- 

 pering from the base to the tip, much longer than the third feeler- 

 joint, but not twice its length ; second joint long, twice the length 

 of the first : chest and breast thickly clothed with black hairs and 

 bristles : scutcheon armed with black spines : abdomen deep dark 

 red, shining, clothed with black hairs, armed with black spines 

 which most abound towards the tip : legs black, clothed with black 

 hairs and bristles ; claws tawny, with black tips ; foot-cushions yel- 

 low : wings gray, black at the base ; wing-ribs red ; veins black ; 

 the little cross-vein clouded with brown ; tip cross-vein forming a 

 very slightly obtuse angle with the fourth longitudinal vein, slightly 

 curved inward near the base, almost straight from thence to the tip, 

 joining the border at some distance above the tip of the wing ; lower 

 cross-vein straight for nearly half the length from the base, very 

 slightly curved outward from thence to the tip ; scales blackish. 

 Length of the body 6 lines ; of the wings 12 lines. 

 a. Jamaica. From Mr. Gosse's collection. 



TachiiVa gagatea ? Jurinia gagatea ? Desv. Essai Myod. 36, 5. 

 a. Venezuela. From Mr. Dyson's collection. 



Tachina alligans, n. s. Nigra, capite Jiavo, thorace fulvo-cinereo 

 vittis quatuor nigris, scutello abdomineque rufo-nigris, antennis 

 nigris, pedibus rufis, femoribus nigris, alisfuscis. 

 Body black : head pale yellow, darker above, and adorned with 

 a brown stripe, which widens from the crown to the base of the feel- 

 ers, beset with a few black bristles, clothed beneath with yellowish 

 white hairs ; epistoma very prominent ; no bristles on the sides of 

 the face : eyes red, slightly bronzed : sucker blaclc, pitchy and 

 clothed with a few short tawny hairs at the tip : feelers black, as 

 long as the face ; third joint not longer than the second, very con- 



PART IV. 3 R 



